package com.bjwl.diy;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;

//注解实现AOP
@Aspect//标注这个类是一个切面
public class AnnotationPointCut {
    @Before("execution(* com.bjwl.service.StudentServiceImpl.*(..))")
    public void before(){
        System.out.println("方法执行前");
    }
    @After("execution(* com.bjwl.service.StudentServiceImpl.*(..))")
    public void after(){
        System.out.println("方法执行后");
    }
    //再环绕增强中，可以给定参数，代表我们要获取处理切入的点
    @Around("execution(* com.bjwl.service.StudentServiceImpl.*(..))")
    public void around(ProceedingJoinPoint joinPoint) throws Throwable {
        System.out.println("环绕前");
        //执行方法
        Object proceed = joinPoint.proceed();
        Signature signature = joinPoint.getSignature();//获得签名，类的信息
        System.out.println("signature = " + signature);
        System.out.println("环绕后");
    }
}
